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Added demo of RFID scanner

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This commit is contained in:
zzzz 2024-04-30 23:15:35 +02:00
parent 1fe3ec02a3
commit 54c4a57bb6
2 changed files with 99 additions and 29 deletions
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1
platformio.ini
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@ -14,3 +14,4 @@ board = d1
framework = arduino
lib_deps =
adafruit/Adafruit SSD1306@^2.5.9
miguelbalboa/MFRC522@^1.4.11

127
src/main.cpp
View file

@ -3,44 +3,73 @@
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <MFRC522.h>
#include "TeaTimer.hpp"
#include "SmartServo.hpp"
#include "ContinuousServo.hpp"
#define WIRE Wire
#define DISPLAY_PIN 4 // D2 (SDA)
#define SERVO_PIN 2 // D4
#define TOUCH_BTN_PIN 0 // D3
#define DISPLAY_PIN 4 // D2 (SDA)
#define SERVO_PIN 0 // D3
#define TOUCH_BTN_PIN 16 // D0
// RFID
#define RST_PIN 2 // D4
uint8_t scanDelay = 5; // 5 second delay between reads
#define SS_PIN 15 // D8
MFRC522 mfrc522(SS_PIN, RST_PIN); // create RFID instance
MFRC522::MIFARE_Key key;
auto display = Adafruit_SSD1306(128, 32, &WIRE);
ContinuousServo contServo(SERVO_PIN);
TeaTimer teaTimer;
void serial_dump_byte_array(byte *buffer, byte bufferSize);
void printMsg(const String &s);
void printMsg(unsigned long l);
void setup()
{
// Serial.begin(9600);
Serial.begin(9600);
teaTimer.init(&contServo);
Serial.println("Initializing SPI...");
SPI.begin();
Serial.println("Initializing RFID...");
mfrc522.PCD_Init();
Serial.print(F("Ver: 0x"));
byte readReg = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);
Serial.println(readReg, HEX);
Serial.println("Initializing OLED...");
display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false); // Address 0x3C for 128x32
printMsg("Tea is Great!");
delay(3000);
// Prepare the key (used both as key A and key B)
for (byte i = 0; i < 6; i++)
{
key.keyByte[i] = 0xFF;
}
Serial.println(F("Scan a MIFARE Classic PICC to demonstrate basic recognition."));
Serial.print(F("Using key (for A and B):"));
serial_dump_byte_array(key.keyByte, MFRC522::MF_KEY_SIZE);
Serial.println();
// teaTimer.init(&contServo);
pinMode(LED_BUILTIN, OUTPUT);
pinMode(TOUCH_BTN_PIN, INPUT);
display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Address 0x3C for 128x32
// Show image buffer on the display hardware.
// Since the buffer is intialized with an Adafruit splashscreen
// internally, this will display the splashscreen.
display.display();
delay(1000);
}
void printMsg(const String &s)
{
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(2);
display.setTextSize(1);
display.setCursor(0, 10);
display.println(s);
display.display();
@ -49,7 +78,7 @@ void printMsg(unsigned long l)
{
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(2);
display.setTextSize(1);
display.setCursor(0, 10);
display.println(l);
display.display();
@ -61,26 +90,66 @@ bool isBtnPressed()
return false;
return digitalRead(TOUCH_BTN_PIN) == HIGH;
}
void loop()
{
teaTimer.tick();
// Look for new cards
if (!mfrc522.PICC_IsNewCardPresent())
return;
if (isBtnPressed() && !teaTimer.isSteeping())
{
teaTimer.beginSteeping(5000);
}
if (teaTimer.isSteeping())
{
auto r = teaTimer.remainingSteepTimeSeconds();
printMsg(r);
}
else
{
printMsg("Default");
}
// Select one of the cards
if (!mfrc522.PICC_ReadCardSerial())
return;
// Show some details of the PICC (that is: the tag/card)
// UID is a unique four hex pairs, e.g. E6 67 2A 12
Serial.print(F("Card UID:"));
serial_dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size);
display.println("Card UID: ");
display.println();
// PICC type, e.g. "MIFARE 1K0"
Serial.print(F("PICC type: "));
MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);
Serial.println(mfrc522.PICC_GetTypeName(piccType));
// Halt PICC
mfrc522.PICC_HaltA();
Serial.print("Delay scanning...");
delay(scanDelay * 1000); // Turn seconds into milliseconds
Serial.println(" ...Ready to scan again!");
/*
teaTimer.tick();
if (isBtnPressed() && !teaTimer.isSteeping())
{
teaTimer.beginSteeping(5000);
}
if (teaTimer.isSteeping())
{
auto r = teaTimer.remainingSteepTimeSeconds();
printMsg(r);
}
else
{
printMsg("Default");
}*/
}
void toggle_led()
{
digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
}
/**
* Helper routine to dump a byte array as hex values to Serial.
*/
void serial_dump_byte_array(byte *buffer, byte bufferSize)
{
for (byte i = 0; i < bufferSize; i++)
{
Serial.print(buffer[i] < 0x10 ? " 0" : " ");
Serial.print(buffer[i], HEX);
}
}